Strong presales momentum and franchise power for Avengers: Doomsday and Dune: Part Three underpin the 97.3% market-implied probability that their combined December 18 domestic opening will surpass Barbenheimer’s roughly $235–246 million benchmark. Both titles benefit from holiday timing, premium-format demand including IMAX sellouts, and cultural anticipation for major Marvel and Dune installments, with early ticket activity already crashing sites and generating crossover buzz reminiscent of 2023’s event. Trader consensus reflects these verifiable tracking signals and historical December performance patterns rather than speculation. A realistic upset would require sharply negative reviews or unforeseen external disruptions significantly damping one or both films’ openings, though current indicators make such scenarios appear remote.